JPH0620748A - Thin form coaxial connector - Google Patents

Abstract

PURPOSE:To provide a thin form coaxial connector which is to be connected with terminals of an electric/electronic component and whose overall height is suppressed approx. to the outside dimensions of a coaxial cable. CONSTITUTION:A thin form coaxial connector includes a male connector member 3, having a male contact 8, and a female connector member 2 having a female contact 5 in the form of flat plate provided with an elastic curving part 5a which is parallel overlapped on the male contact to generate contacting. When the two connector members 3, 2 are fitted together to generate electric connections of a coaxial cable 4, the arrangement is such that the two contacts 8, 5 and the coaxial cable 4 have their longitudinal direction parallel to a printed circuit board 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coaxial connector connected to terminals of electric / electronic parts.

[0002]

2. Description of the Related Art Conventionally, in order to connect a coaxial cable to, for example, a terminal mounted on a printed circuit board, in order to meet the demand for light, thin and lightweight electric and electronic products, the axial direction of the contact pin of the terminal is considered. The overall thickness of the product is reduced by using a coaxial connector in which coaxial cables are arranged in the orthogonal direction.

That is, as shown in FIGS. 6 to 7, a male connector 21 mounted on the surface of a printed circuit board 20.
And a female connector 22 that connects and connects a coaxial cable
And form a coaxial connector. The male connector 2
As shown in FIG. 6, reference numeral 1 denotes a right angle type connector, which is a male contact pin 21a bent in an L shape, an insulator 21b, and outer shells 21c and 21.
d, and a mounting leg portion 21e extending from the outer shell. Further, the female connector 22 includes an elastic outer shell 22a for fitting and a female contact 22.
b and an insulator 22c for insulating these.

[0004]

However, in the above-mentioned coaxial connector, the outer end of the male contact pin 21a bent at a right angle to the L-shape has a cylindrical outer shape to be fitted with the female connector 22. There is a shell shell 21d, and the outer shell shell 22a of the female connector 22 is fitted to the outer periphery of the shell shell 21d. Therefore, for fitting operation, there is a certain height from the surface of the printed circuit board 20 (about twice the outer diameter of the coaxial cable). The outer shell 21d must be provided with a certain degree), and there is a limit to lowering the overall height H ₁ of the male connector 21 shown in FIG. 6B. Therefore, this is an obstacle to making electric appliances thinner. The present invention has been made in view of the above problems, and an object of the present invention is to provide a thin coaxial connector in which the overall height of the coaxial connector is reduced to about the outer diameter dimension of the coaxial cable.

[0005]

The gist of the present invention to solve the above-mentioned problems and achieve the above-mentioned objects is that one end portion in the longitudinal direction of a flat contact body is electrically connected to a pattern circuit on a printed circuit board. A male contact having the other end penetrating into the hollow interior of the insulator, an insulator having the body of the male contact inside, and an outer shell having the insulator fitted therein. A female connector provided with a male connector, a flat contact body having an elastic curved portion that overlaps and abuts the main body of the male contact in parallel, and a coaxial cable locking portion that stands upright from the main body. Female connector including a female contact, an insulator in which the female contact is contained and fixed, and a female outer shell in which the female contact insulator is fitted and a coaxial cable is sandwiched. When the male and female connectors are fitted to each other to electrically connect the coaxial cable, the male contact, the female contact and the coaxial cable each have a longitudinal direction parallel to the printed circuit board. It will be arranged as.

[0006]

According to the thin coaxial connector of the present invention, the male contact and the female contact are flat plates,
Since the ends are overlapped in parallel and abutted against each other to electrically connect the coaxial cable, the overall height of the coaxial connector can be reduced. Therefore, the height is about half that of the coaxial connector in the conventional example, which is optimal for thinning electric and electronic products, and the degree of freedom in design is increased. Further, since the above-mentioned electrical connection is surface contact, even if this coaxial connector is repeatedly used, there is a fear that the mating state of the male contact pin and the female contact in the conventional example will be gradually weakened. The thin coaxial connector of the present invention eliminates the loss of reliability of electrical connection.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a vertical sectional view of a coaxial connector 1 according to the present invention,
2 is a transverse sectional view of the same, FIGS. 3 to 4 are exploded perspective views and assembly views of the female connector 2, and FIG. 5 is an exploded perspective view and assembly view of the male connector 3. Reference numeral 1 is a coaxial connector, 2 is a female connector, 3 is a male connector, 4 is a coaxial cable, 5 is a female contact, 6 is an insulator for female contacts, 7 is an outer shell for a metallic female shell, and 8 Indicates a male contact, 9 indicates an insulator, and 10 indicates a metal outer shell.

The structures of the female connector 2 and the male connector 3 of the thin coaxial connector 1 of the present invention will be described. As shown in FIGS. 3 to 4, the female connector 2 comprises a female contact 5, an insulator 6, and a metallic outer shell 7. The female contact 5 includes a flat plate-shaped contact body 5b having an elastic curved portion 5a that overlaps and abuts on a male contact 8 described later, and a coaxial cable 4 that is erected at a substantially right angle at the end of the contact body 5b. An engaging portion 5c having an engaging groove formed therein is provided.

Further, the contact body 5b is a narrow flat plate which is inclined slightly upward, and the end portion is folded back to form a curved portion 5a. It should be noted that the hooking portion 5d vertically extending from the side edge portion of the contact body 5b is locked in a hole provided in the female contact insulator 6 so that the contact body 5b is fixed to the female contact insulator 6. It is for fixing.

The female contact insulator 6 is an insulator for holding and fixing the female contact 5. The body 7a of the female outer shell 7 has a metal U-shape,
A locking spring body 7b is provided on both side walls thereof, a holding body 7c for holding the shield net body 4a of the coaxial cable 4 from one end, and a caulking portion 7d for holding the outer periphery of the coaxial cable 4 is provided. It is provided.

The core portion 4b of the coaxial cable 4 is sandwiched by the engaging portion 5c of the female contact 5 thus formed so as to be electrically connected and retained, and the female contact 5 is contained in the female contact insulator 6. Then, the female outer shell 7 is fitted so as to cover the outer peripheral surface of the insulator 6, and at the same time, the net body 4a is sandwiched by the sandwiching body 7c, and the caulking portion 7d is swaged to coaxial cable 4 Sandwiching the outer periphery of the
The assembled female connector 2 shown in (a) and (b) is obtained.

Next, the male connector 3 is installed in FIG.
This will be described with reference to (b). The male connector 3 includes a male contact 8, an insulator 9, and a metal outer shell 10. In the male contact 8, one end portion 8b in the longitudinal direction of the elongated and flat body 8a is electrically connected to the pattern circuit on the printed circuit board 20, and the other end portion 8c is hollow of the insulator 9. It is designed to penetrate the interior.

The insulator 9 has a through hole 9a through which the other end 8c of the male contact 8 is inserted into the inside hollow, and a three-dimensional side wall surface erected from the bottom, and an outer shell 1 to be described later.
A hole 9b for locking the 0 locking portion 10a is provided. Further, no side wall is provided on the surface opposite to the side wall provided with the through hole 9a, and there is no upper surface portion.

The metal outer shell 10 is composed of an upper surface body that covers the insulator 9 from above and a three-sided side wall surface that extends downward from the upper surface body. A locking piece 10a that is locked in the hole 9b and a protrusion wall 10b that protrudes inward are provided. The protrusion wall 10
b is for holding the fitting of the female connector 2 and the male connector 3 by the frictional force of the locking spring body 7b of the female connector 2 which is pressed and displaced inward at the time of fitting.

Then, the outer shell 10 is shown in FIG.
When it is fitted into the insulator 9 as shown in FIG. 2, the whole becomes a box-shaped body and one side wall side thereof becomes an opening 11, which serves as an opening for fitting the female connector 2 and the male connector 3. is there.

After the male connector 3 thus formed is surface-mounted mainly on the end side of the printed circuit board 20, the female connector 2 formed by connecting the coaxial cable 4 is opened in the male connector 3. The state shown in FIGS. 1 and 2 is obtained by inserting from the portion and fitting. Female connector 2
The locking spring body 7b of the male connector 3 is the protruding wall 10b.
Is displaced inward by the repulsive force and the fitted state is maintained. When the coaxial cable 4 is electrically connected in this fitted state, the male contact 8 and the female contact 5 and the coaxial cable 4 are arranged such that their longitudinal directions are parallel to the printed circuit board 20. Become.

Then, the shielding net body 4a is electrically connected to the circuit pattern of the printed circuit board 20 from the holding body 7c of the female outer shell 7 and the outer shell 10 of the male connector 3 in a conductive state, Will be shielded.
Further, the male contact 8 and the female contact 5 are superposed in parallel and contact with each other, the curved portion 5a of the female contact 5 is slightly lifted, and the repulsive force strongly holds the contact state to establish an electrical connection. It

The thin coaxial connector 1 thus fitted is in a total height H from the surface of the printed circuit board 20.
_The height ₂ is about half the height H ₁ of the conventional example.

[0019]

As described above, the thin coaxial connector of the present invention is a flat plate body having a male connector having a male contact and a flat plate having an elastic curved portion which overlaps and abuts the male contact in parallel. And a female connector having a female contact in the shape of a connector, and when the male connector and the female connector are fitted to each other to electrically connect the coaxial cable, the male contact, the female contact, and the coaxial cable Since the longitudinal direction of each is arranged parallel to the printed circuit board, the component height from the printed circuit board surface to the upper end surface of the thin coaxial connector can be reduced to about half that of the conventional product. It will greatly contribute to the realization. Further, the male / female contacts are electrically connected by surface contact, the electrical connection state is not deteriorated by repeated use, and the product reliability is improved.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a thin coaxial connector according to the present invention.

FIG. 2 is a transverse sectional view of the same.

FIG. 3 is an exploded perspective view of a female connector.

FIG. 4 is a plan view (a) and a front view (b) of the same female connector assembled.

FIG. 5 is an exploded perspective view (a) and an assembled front view (b) of the male connector.

FIG. 6 is a side view (a), a front view (b) and a bottom view (c) showing a male connector of a coaxial connector according to a conventional example.

FIG. 7 is a half sectional front view showing a female connector of the coaxial connector according to the conventional example.

[Explanation of symbols]

1 coaxial connector, 2 female connector, 3 male connector, 4 coaxial cable, 5 female contact, 6
Female contact insulator, 7 metal female outer shell, 8 male contact, 9 insulator, 10 metal outer shell.

Claims (1)

[Claims] 1. A flat contact body has one end in the longitudinal direction electrically connected to a pattern circuit on a printed circuit board, and the other end penetrates into a hollow interior of an insulator. A male connector including a male contact, an insulator that houses the body of the male contact, an outer shell that fits the insulator, and an elastic curve that overlaps and abuts the body of the male contact in parallel. Female contact having a flat plate-shaped contact body having a portion, a locking portion for a coaxial cable erected at a substantially right angle from the body, an insulator in which the female contact is held and fixed, and the female type A female connector having a female outer shell in which a contact insulator is fitted and a coaxial cable is sandwiched between the male connector and the female connector. Thin coaxial connector comprising a wherein each longitudinal direction of the electrical connection of the cable is made male contact and the female contact and coaxial cable are disposed in parallel to the printed circuit board.